BULLETII^ 1085, U. S. DEPAHTMENT OF AGRICULTURE. 



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Temperature for period 

 of development. 



1 



" F. 

 82.5 

 81.5 

 81.5 

 81.5 

 81.5 

 73.5 

 73.5 

 81 



81.5 

 81.5 

 81 

 81 



63. 5 

 62.5 

 63 

 63 

 62.5 

 63.5 

 63.5 



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Period 

 from 

 egg to 

 adult. 



C5 



Length 



pupal 

 stage. 



e 



Adult 

 emerged. 



Aug. 28 



Sept. . 5 



4 



7 



May 2 

 4 



Aug. 6 



July 29 



Aug. 2 

 14 

 9 



Jan. 14 

 20 



Feb. 9 

 20 

 26 

 24 



Mar. 8 



1 



, ^, „ ™ »» 1 



Length 

 of pre- 

 pupal 

 stage. 



Days. 



Date 

 pupated. 



Aug. 23 

 31 

 30 



Sept. 2 

 2 



Apr. 27 

 28 



Aug. 1 



July 24 

 28 



Aug. 9 

 4 



Jan. 1 

 7 

 13 



Feb. 5 

 15 

 12 

 24 



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, tfrs 5 M Si 

 1 as C <a . e 



t -^ o 



Prepupal 

 form. 



Aug. 22 

 30 

 29 



Sept. 1 



Apr. 26 

 27 



July 31 

 23 

 27 



Aug. S 

 3 



Dec. 30 



Jan. 5 

 11 



Feb. 3 

 14 

 11 

 22 



Length of 

 second 

 larval 



stage. 



^•.ccoccurwt^i-'^L'^.^i^i-or^icicoocoN j 



e 







Date 



of 

 second 

 molt. 



Aug. 17 

 22 

 22 

 26 

 27 



Apr. 13 

 17 



July 17 

 17 

 16 

 25 

 26 



Dec. 19 

 20 

 27 



Jan. 13 

 26 

 27 



Feb. 8 



■♦^ Da's a5 1 *= 



Date 

 of 



first 

 molt. 



Aug. 11 

 18 

 19 

 20 

 22 



Apr. 7 

 10 



July 12 



12 



12 







1 



Dec. 2 



12 

 Jan. 3 



10 



14 





Date 



egg 



was 



hatched. 



Aug. 5 

 12 

 14 



15 



17 



Mar. 30 



Apr. 2 



July 6 



5 



5 



14 



15 



Nov. 18 



24 



Dec. 2 



20 



27 



Jan. 2 



14 



Date 



egg 



was 

 laid. 



Aug. 1 



8 

 10 



13 



Mar. 25 



28 



June 30 



July 1 



1 



10 



11 



Nov. 11 



16 



22 



Doc. 6 



13 



22 



Jan. 4 



c 



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